The "Fertile Window" has been defined as the days of the menstrual cycle during which intercourse is most likely to result in pregnancy. This fertile window last for 6 days - it begins 5 days prior to ovoulation and lasts until the day of ovulation. Your most fertile days are the 4-5 days before and the day of ovulation.
Improve your chances of pregnancy when trying to conceive (TTC):
- Making love the day after established ovulation is unlikely to improve your chances getting pregnant.
- Increasing amounts of estrogen in the cervical mucus and reproductive tract of a women approaching ovulation generally allows the sperm to live for up to 6 days.
- Studies have shown that even in women with regular cycles, ovulation can possibly happen any time, so "timing" of intercourse has never been shown to improve your pregnancy chances. You are probably not improving your chances of getting pregnant if you wait with intercourse until the temperature goes up or the OPK has become positive. You may already have ovulated by that time, and sex after ovulation is unlikely to get you pregnant.
- Previously, couples trying to conceive (TTC) were told to have sex once every other day during their fertile days. Recent studies have shown that the average couple who is trying to conceive should make love regularly 2-3 times a week, every week because you don't know exactly when ovulation happens.